Good news, it actually works! I was using the version 1.1 WAD, so honestly weird crashes really aren’t unexpected. I haven’t looked much at what to do with audio, but I was really impressed compared to the Qauake II wars, it was really surprising to not only see DooM run on the first shot in real metal, but the keyboard works as well. Well enough for me to pick a level, and get killed.
Naturally it doesn’t work under Windows, however it runs fine with MS-DOS mode.